Problem with color on WS2812B

Hello, i have problem with my LED strips.
I use program from the video:

My led light on green color when i hit turn lights button. On other programs LED strips light on orange. Why?

My program:

//Modern turn lights v.1.0.0 with arduino and ws2812b by Fedaceag Ionut
#include <FastLED.h>                        //FastLed library version 3.2.1 - https://github.com/FastLED/FastLED/wiki/Overview or http://fastled.io/ with NEOPIXEL or WS2812B
#define NUM_STRIPS 2                        // number of led strips (in this example are front left and front right)
#define NUM_LEDS_PER_STRIP 72               // number of leds per each strip
CRGB leds[NUM_STRIPS][NUM_LEDS_PER_STRIP];
uint32_t gHue = 0;                           // rotating "base color" used by many of the patterns

const int buttonPinL = 2;                   // turn left
const int buttonPinR = 3;                   // turn right
const int buttonPinEng = 4;                 // engine on to start day lights
const int buttonPinKnightRider = 5;         // knight rider lights

int buttonStateL = 0;
int buttonStateR = 0;
int engineOn = 0;
int KnightRiderState = 0;

int stateL = 0;
int stateR = 0;

uint8_t gBrtL = 0;
uint8_t gBrtR = 0;
int maxBrt = 180;                           // maxim brightness day lights - from 0 to 255

int delayTurnLedAnim = 1; //delay of each led in turn light animation
int delayTurnLedOff = 500; //delay from animation to black (is used twice)
int delayLedToDayLight = 500; // delay from animation to day light on
int nrAnimAfterOff = 3; // number of animations for a single impulse

void setup() { 
  //Serial.begin(9600);
  pinMode(buttonPinL, INPUT);
  pinMode(buttonPinR, INPUT);
  pinMode(buttonPinEng, INPUT);
  pinMode(buttonPinKnightRider, INPUT);
  
  FastLED.addLeds<NEOPIXEL, 8>(leds[0], NUM_LEDS_PER_STRIP); //led strip for front left
  FastLED.addLeds<NEOPIXEL, 9>(leds[1], NUM_LEDS_PER_STRIP); //led strip for front right
  
  attachInterrupt(digitalPinToInterrupt(buttonPinL),btnPressL,RISING); // we use interrupt for instant reaction of turn lights
  attachInterrupt(digitalPinToInterrupt(buttonPinR),btnPressR,RISING); // we use interrupt for instant reaction of turn lights

  fill_solid(leds[0], NUM_LEDS_PER_STRIP, CRGB::Black); // some led strips are all on at power on, so let's power them off at boot
  fill_solid(leds[1], NUM_LEDS_PER_STRIP, CRGB::Black); // some led strips are all on at power on, so let's power them off at boot
  FastLED.show();
}

void loop() {
  // read the input state
    buttonStateL = digitalRead(buttonPinL); 
    buttonStateR = digitalRead(buttonPinR);
    KnightRiderState = digitalRead(buttonPinKnightRider);
    EVERY_N_MILLISECONDS( 1 ){
      engineOn = digitalRead(buttonPinEng);
    }

  //function for hazard lights
  if(stateL != 0 && stateR != 0){ 
    
    for(int dot = 0; dot < NUM_LEDS_PER_STRIP; dot++) { 
        leds[0][dot] = CRGB::Orange; // color for left turn light
        leds[1][dot] = CRGB::Orange; // color for right turn light
        FastLED.show();
        delay(delayTurnLedAnim);
    }
    
    delay(delayTurnLedOff);
    fill_solid(leds[0], NUM_LEDS_PER_STRIP, CRGB::Black);
    fill_solid(leds[1], NUM_LEDS_PER_STRIP, CRGB::Black);
    FastLED.show();
    delay(delayTurnLedOff);

    if(buttonStateL != HIGH || buttonStateR != HIGH){
      
      if(buttonStateL == HIGH){
        stateL = 1;
      }else{
        stateL = 0;
        gBrtL = 0;
      }
      
      if(buttonStateR == HIGH){
        stateR = 1;
      }else{
        stateR = 0;
        gBrtR = 0;
      }
      
      if(buttonStateL != HIGH && buttonStateR != HIGH){
        delay(delayLedToDayLight);        
      }
      
    }

  //function for left turn lights
  }else if(stateL != 0){
    
    if(KnightRiderState == HIGH && engineOn == LOW){
      fill_solid(leds[1], NUM_LEDS_PER_STRIP, CRGB::Black);
    }
    
    for(int dot = 0; dot < NUM_LEDS_PER_STRIP; dot++) { 
        leds[0][dot] = CRGB::Orange; // color for left turn light
        FastLED.show();
        delay(delayTurnLedAnim);
    }
    
    delay(delayTurnLedOff);
    fill_solid(leds[0], NUM_LEDS_PER_STRIP, CRGB::Black);
    FastLED.show();
    delay(delayTurnLedOff);

    stateL++;
    if(stateL >= nrAnimAfterOff && buttonStateL != HIGH){
      stateL = 0;
      gBrtL = 0;
      delay(delayLedToDayLight);
    }

  //function for right turn lights
  }else if(stateR != 0){
    
    if(KnightRiderState == HIGH && engineOn == LOW){
      fill_solid(leds[0], NUM_LEDS_PER_STRIP, CRGB::Black);
    }
      
    for(int dot = 0; dot < NUM_LEDS_PER_STRIP; dot++) { 
        leds[1][dot] = CRGB::Orange; // color for right turn light
        FastLED.show();
        delay(delayTurnLedAnim);
    }
    
    delay(delayTurnLedOff);
    fill_solid(leds[1], NUM_LEDS_PER_STRIP, CRGB::Black);
    FastLED.show();
    delay(delayTurnLedOff);

    stateR++;
    if(stateR >= nrAnimAfterOff && buttonStateR != HIGH){
      stateR = 0;
      gBrtR = 0;
      delay(delayLedToDayLight);
    }
    
  }else{
    
    if(stateL == 0 && engineOn == HIGH){
      if(gBrtL <= maxBrt){
        EVERY_N_MILLISECONDS( 1 ) { gBrtL++; } 
        fill_solid( leds[0], NUM_LEDS_PER_STRIP, CHSV(0,0,gBrtL));
        FastLED.show();
      }
    }else{
      if(gBrtL > 0){
        EVERY_N_MILLISECONDS( 1 ) { gBrtL--; } 
        fill_solid( leds[0], NUM_LEDS_PER_STRIP, CHSV(0,0,gBrtL));
        FastLED.show();
      }else{
        if(KnightRiderState == HIGH){          
          gHue = 0;
          //EVERY_N_MILLISECONDS( 20 ) { gHue++; }
          fadeToBlackBy( leds[0], NUM_LEDS_PER_STRIP, 20);
          int pos = beatsin16( 30, 0, NUM_LEDS_PER_STRIP-1 );
          leds[0][pos] += CHSV( gHue, 255, 192);
          FastLED.show();
        }
      }
    }

    if(stateR == 0 && engineOn == HIGH){
      if(gBrtR <= maxBrt){     
        EVERY_N_MILLISECONDS( 1 ) { gBrtR++; }
        fill_solid( leds[1], NUM_LEDS_PER_STRIP, CHSV(0,0,gBrtR));
        FastLED.show();  
      }     
    }else{
      if(gBrtR > 0){        
        EVERY_N_MILLISECONDS( 1 ) { gBrtR--; }
        fill_solid( leds[1], NUM_LEDS_PER_STRIP, CHSV(0,0,gBrtR));
        FastLED.show();
      }else{
        if(KnightRiderState == HIGH){          
          gHue = 0;
          //EVERY_N_MILLISECONDS( 20 ) { gHue++; }
          fadeToBlackBy( leds[1], NUM_LEDS_PER_STRIP, 20);
          int pos = beatsin16( 30, 0, NUM_LEDS_PER_STRIP-1 );
          leds[1][pos] += CHSV( gHue, 255, 192);
          FastLED.show();
        }
      }
    }
  }
}

void btnPressL(){
  stateL = 1;
  for(int nr = 0; nr < 1500; nr++) { 
    buttonStateR = digitalRead(buttonPinR);
    if(buttonStateR == 1){
        stateR = 1;     
      }
  }
}

void btnPressR(){
   stateR = 1;
   for(int nr = 0; nr < 1500; nr++) { 
     buttonStateL = digitalRead(buttonPinL); 
     if(buttonStateL == 1){
        stateL = 1;
      }
   }
}

Can someone help me?

Have you tried changing the colour order?
Some devices are GRB instead of RGB.

But where can i change it?

In your code.

kalksip:
But where can i change it?

Look at the examples that come with the FastLed library.